GB604515A - Improvements relating to mixers for liquids and particularly hot and cold water - Google Patents

Abstract

604,515. Mixing-valves. SALINGER, G. T., and NEY, O. April 20, 1945, No. 9924. [Class 135] In a mixer for two liquids, e.g. hot and cold water, having two cocks governing the respective liquids, an adjustable throttling-plug 17, Fig. 1, is inserted between the cock controlling the liquid with the higher pressure, e.g. cold water, and the mixing chamber 30. The mixer, comprises a plug 5 rotatable in a housing 4 to connect the mixture chamber either to a spout or a shower via ports 11, 14 respectively. The throttling-plug 17 allows hot water to pass unrestrictedly from the inlet 1 through a port 22, and an opening 24 to the mixing chamber, but restricts the passage of cold water from the inlet 2 via ports 23, 25, and openings 26, 27 by the needle 29 adjustably threaded in the plug-handle extension 6. When the mixer is open to an unrestricted outlet, e.g. the spout, the cold water passes through ports 8, 10, the hot water through ports 7, 9, and at the same time both liquids pass through their respective passages in the throttling-plug. When the mixer is open to a restricted outlet, e.g. the shower, the ports 7, 9, and 8, 10, are closed and both liquids pass only through the throttling plug. Fig. 5, shows a modification, having a mixing chamber 52 with an outlet 53, the throttling of the cold water from its inlet 39 being effected by screwing in the plug 42 having a baffle 47, separating two spaces 45, 46, of different lengths.